4 * Copyright (c) 2003-2008 Fabrice Bellard
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
32 /* Needed early for HOST_BSD etc. */
33 #include "config-host.h"
36 #include <sys/times.h>
40 #include <sys/ioctl.h>
41 #include <sys/resource.h>
42 #include <sys/socket.h>
43 #include <netinet/in.h>
46 #include <net/if_tap.h>
49 #include <linux/if_tun.h>
51 #include <arpa/inet.h>
54 #include <sys/select.h>
57 #if defined(__FreeBSD__) || defined(__DragonFly__)
62 #elif defined (__GLIBC__) && defined (__FreeBSD_kernel__)
63 #include <freebsd/stdlib.h>
68 #include <linux/rtc.h>
70 /* For the benefit of older linux systems which don't supply it,
71 we use a local copy of hpet.h. */
72 /* #include <linux/hpet.h> */
75 #include <linux/ppdev.h>
76 #include <linux/parport.h>
80 #include <sys/ethernet.h>
81 #include <sys/sockio.h>
82 #include <netinet/arp.h>
83 #include <netinet/in.h>
84 #include <netinet/in_systm.h>
85 #include <netinet/ip.h>
86 #include <netinet/ip_icmp.h> // must come after ip.h
87 #include <netinet/udp.h>
88 #include <netinet/tcp.h>
96 #if defined(__OpenBSD__)
100 #if defined(CONFIG_VDE)
101 #include <libvdeplug.h>
107 #include <sys/timeb.h>
108 #include <mmsystem.h>
109 #define getopt_long_only getopt_long
110 #define memalign(align, size) malloc(size)
113 #include "qemu-common.h"
117 #include "qemu-timer.h"
118 #include "qemu-char.h"
119 #include "audio/audio.h"
120 #include "qemu_socket.h"
121 #include "qemu-log.h"
123 #if defined(CONFIG_SLIRP)
124 #include "libslirp.h"
128 static VLANState
*first_vlan
;
130 /***********************************************************/
131 /* network device redirectors */
133 #if defined(DEBUG_NET) || defined(DEBUG_SLIRP)
134 static void hex_dump(FILE *f
, const uint8_t *buf
, int size
)
138 for(i
=0;i
<size
;i
+=16) {
142 fprintf(f
, "%08x ", i
);
145 fprintf(f
, " %02x", buf
[i
+j
]);
152 if (c
< ' ' || c
> '~')
161 static int parse_macaddr(uint8_t *macaddr
, const char *p
)
168 offset
= strtol(p
, &last_char
, 0);
169 if (0 == errno
&& '\0' == *last_char
&&
170 offset
>= 0 && offset
<= 0xFFFFFF) {
171 macaddr
[3] = (offset
& 0xFF0000) >> 16;
172 macaddr
[4] = (offset
& 0xFF00) >> 8;
173 macaddr
[5] = offset
& 0xFF;
176 for(i
= 0; i
< 6; i
++) {
177 macaddr
[i
] = strtol(p
, (char **)&p
, 16);
182 if (*p
!= ':' && *p
!= '-')
193 static int get_str_sep(char *buf
, int buf_size
, const char **pp
, int sep
)
204 if (len
> buf_size
- 1)
213 int parse_host_src_port(struct sockaddr_in
*haddr
,
214 struct sockaddr_in
*saddr
,
215 const char *input_str
)
217 char *str
= strdup(input_str
);
218 char *host_str
= str
;
220 const char *src_str2
;
224 * Chop off any extra arguments at the end of the string which
225 * would start with a comma, then fill in the src port information
226 * if it was provided else use the "any address" and "any port".
228 if ((ptr
= strchr(str
,',')))
231 if ((src_str
= strchr(input_str
,'@'))) {
236 if (parse_host_port(haddr
, host_str
) < 0)
240 if (!src_str
|| *src_str
== '\0')
243 if (parse_host_port(saddr
, src_str2
) < 0)
254 int parse_host_port(struct sockaddr_in
*saddr
, const char *str
)
262 if (get_str_sep(buf
, sizeof(buf
), &p
, ':') < 0)
264 saddr
->sin_family
= AF_INET
;
265 if (buf
[0] == '\0') {
266 saddr
->sin_addr
.s_addr
= 0;
268 if (qemu_isdigit(buf
[0])) {
269 if (!inet_aton(buf
, &saddr
->sin_addr
))
272 if ((he
= gethostbyname(buf
)) == NULL
)
274 saddr
->sin_addr
= *(struct in_addr
*)he
->h_addr
;
277 port
= strtol(p
, (char **)&r
, 0);
280 saddr
->sin_port
= htons(port
);
284 #if !defined(_WIN32) && 0
285 static int parse_unix_path(struct sockaddr_un
*uaddr
, const char *str
)
290 len
= MIN(108, strlen(str
));
291 p
= strchr(str
, ',');
293 len
= MIN(len
, p
- str
);
295 memset(uaddr
, 0, sizeof(*uaddr
));
297 uaddr
->sun_family
= AF_UNIX
;
298 memcpy(uaddr
->sun_path
, str
, len
);
304 void qemu_format_nic_info_str(VLANClientState
*vc
, uint8_t macaddr
[6])
306 snprintf(vc
->info_str
, sizeof(vc
->info_str
),
307 "model=%s,macaddr=%02x:%02x:%02x:%02x:%02x:%02x",
309 macaddr
[0], macaddr
[1], macaddr
[2],
310 macaddr
[3], macaddr
[4], macaddr
[5]);
313 static char *assign_name(VLANClientState
*vc1
, const char *model
)
319 for (vlan
= first_vlan
; vlan
; vlan
= vlan
->next
) {
322 for (vc
= vlan
->first_client
; vc
; vc
= vc
->next
)
323 if (vc
!= vc1
&& strcmp(vc
->model
, model
) == 0)
327 snprintf(buf
, sizeof(buf
), "%s.%d", model
, id
);
332 VLANClientState
*qemu_new_vlan_client(VLANState
*vlan
,
335 IOReadHandler
*fd_read
,
336 IOCanRWHandler
*fd_can_read
,
340 VLANClientState
*vc
, **pvc
;
341 vc
= qemu_mallocz(sizeof(VLANClientState
));
342 vc
->model
= strdup(model
);
344 vc
->name
= strdup(name
);
346 vc
->name
= assign_name(vc
, model
);
347 vc
->fd_read
= fd_read
;
348 vc
->fd_can_read
= fd_can_read
;
349 vc
->cleanup
= cleanup
;
354 pvc
= &vlan
->first_client
;
361 void qemu_del_vlan_client(VLANClientState
*vc
)
363 VLANClientState
**pvc
= &vc
->vlan
->first_client
;
379 VLANClientState
*qemu_find_vlan_client(VLANState
*vlan
, void *opaque
)
381 VLANClientState
**pvc
= &vlan
->first_client
;
384 if ((*pvc
)->opaque
== opaque
)
392 int qemu_can_send_packet(VLANClientState
*vc1
)
394 VLANState
*vlan
= vc1
->vlan
;
397 for(vc
= vlan
->first_client
; vc
!= NULL
; vc
= vc
->next
) {
399 if (vc
->fd_can_read
&& vc
->fd_can_read(vc
->opaque
))
407 qemu_deliver_packet(VLANClientState
*sender
, const uint8_t *buf
, int size
)
411 for (vc
= sender
->vlan
->first_client
; vc
!= NULL
; vc
= vc
->next
) {
412 if (vc
!= sender
&& !vc
->link_down
) {
413 vc
->fd_read(vc
->opaque
, buf
, size
);
418 void qemu_send_packet(VLANClientState
*vc
, const uint8_t *buf
, int size
)
420 VLANState
*vlan
= vc
->vlan
;
427 printf("vlan %d send:\n", vlan
->id
);
428 hex_dump(stdout
, buf
, size
);
430 if (vlan
->delivering
) {
431 packet
= qemu_malloc(sizeof(VLANPacket
) + size
);
432 packet
->next
= vlan
->send_queue
;
435 memcpy(packet
->data
, buf
, size
);
436 vlan
->send_queue
= packet
;
438 vlan
->delivering
= 1;
439 qemu_deliver_packet(vc
, buf
, size
);
440 while ((packet
= vlan
->send_queue
) != NULL
) {
441 vlan
->send_queue
= packet
->next
;
442 qemu_deliver_packet(packet
->sender
, packet
->data
, packet
->size
);
445 vlan
->delivering
= 0;
449 static ssize_t
vc_sendv_compat(VLANClientState
*vc
, const struct iovec
*iov
,
452 uint8_t buffer
[4096];
456 for (i
= 0; i
< iovcnt
; i
++) {
459 len
= MIN(sizeof(buffer
) - offset
, iov
[i
].iov_len
);
460 memcpy(buffer
+ offset
, iov
[i
].iov_base
, len
);
464 vc
->fd_read(vc
->opaque
, buffer
, offset
);
469 static ssize_t
calc_iov_length(const struct iovec
*iov
, int iovcnt
)
474 for (i
= 0; i
< iovcnt
; i
++)
475 offset
+= iov
[i
].iov_len
;
479 ssize_t
qemu_sendv_packet(VLANClientState
*sender
, const struct iovec
*iov
,
482 VLANState
*vlan
= sender
->vlan
;
488 if (sender
->link_down
)
489 return calc_iov_length(iov
, iovcnt
);
491 if (vlan
->delivering
) {
492 max_len
= calc_iov_length(iov
, iovcnt
);
494 packet
= qemu_malloc(sizeof(VLANPacket
) + max_len
);
495 packet
->next
= vlan
->send_queue
;
496 packet
->sender
= sender
;
498 for (i
= 0; i
< iovcnt
; i
++) {
499 size_t len
= iov
[i
].iov_len
;
501 memcpy(packet
->data
+ packet
->size
, iov
[i
].iov_base
, len
);
504 vlan
->send_queue
= packet
;
506 vlan
->delivering
= 1;
508 for (vc
= vlan
->first_client
; vc
!= NULL
; vc
= vc
->next
) {
515 len
= calc_iov_length(iov
, iovcnt
);
516 } else if (vc
->fd_readv
) {
517 len
= vc
->fd_readv(vc
->opaque
, iov
, iovcnt
);
518 } else if (vc
->fd_read
) {
519 len
= vc_sendv_compat(vc
, iov
, iovcnt
);
521 max_len
= MAX(max_len
, len
);
524 while ((packet
= vlan
->send_queue
) != NULL
) {
525 vlan
->send_queue
= packet
->next
;
526 qemu_deliver_packet(packet
->sender
, packet
->data
, packet
->size
);
529 vlan
->delivering
= 0;
535 #if defined(CONFIG_SLIRP)
537 /* slirp network adapter */
539 static int slirp_inited
;
540 static int slirp_restrict
;
541 static char *slirp_ip
;
542 static VLANClientState
*slirp_vc
;
544 int slirp_can_output(void)
546 return !slirp_vc
|| qemu_can_send_packet(slirp_vc
);
549 void slirp_output(const uint8_t *pkt
, int pkt_len
)
552 printf("slirp output:\n");
553 hex_dump(stdout
, pkt
, pkt_len
);
557 qemu_send_packet(slirp_vc
, pkt
, pkt_len
);
560 int slirp_is_inited(void)
565 static void slirp_receive(void *opaque
, const uint8_t *buf
, int size
)
568 printf("slirp input:\n");
569 hex_dump(stdout
, buf
, size
);
571 slirp_input(buf
, size
);
574 static int slirp_in_use
;
576 static void net_slirp_cleanup(VLANClientState
*vc
)
581 static int net_slirp_init(VLANState
*vlan
, const char *model
, const char *name
)
584 /* slirp only supports a single instance so far */
589 slirp_init(slirp_restrict
, slirp_ip
);
591 slirp_vc
= qemu_new_vlan_client(vlan
, model
, name
,
592 slirp_receive
, NULL
, net_slirp_cleanup
, NULL
);
593 slirp_vc
->info_str
[0] = '\0';
598 static void net_slirp_redir_print(void *opaque
, int is_udp
,
599 struct in_addr
*laddr
, u_int lport
,
600 struct in_addr
*faddr
, u_int fport
)
602 Monitor
*mon
= (Monitor
*)opaque
;
607 h_addr
= ntohl(faddr
->s_addr
);
608 g_addr
= ntohl(laddr
->s_addr
);
610 monitor_printf(mon
, " %s |", is_udp
? "udp" : "tcp" );
611 snprintf(buf
, 15, "%d.%d.%d.%d", (h_addr
>> 24) & 0xff,
612 (h_addr
>> 16) & 0xff,
613 (h_addr
>> 8) & 0xff,
615 monitor_printf(mon
, " %15s |", buf
);
616 monitor_printf(mon
, " %5d |", fport
);
618 snprintf(buf
, 15, "%d.%d.%d.%d", (g_addr
>> 24) & 0xff,
619 (g_addr
>> 16) & 0xff,
620 (g_addr
>> 8) & 0xff,
622 monitor_printf(mon
, " %15s |", buf
);
623 monitor_printf(mon
, " %5d\n", lport
);
627 static void net_slirp_redir_list(Monitor
*mon
)
632 monitor_printf(mon
, " Prot | Host Addr | HPort | Guest Addr | GPort\n");
633 monitor_printf(mon
, " | | | | \n");
634 slirp_redir_loop(net_slirp_redir_print
, mon
);
637 static void net_slirp_redir_rm(Monitor
*mon
, const char *port_str
)
641 const char *p
= port_str
;
648 if (!port_str
|| !port_str
[0])
651 get_str_sep(buf
, sizeof(buf
), &p
, ':');
653 if (!strcmp(buf
, "tcp") || buf
[0] == '\0') {
655 } else if (!strcmp(buf
, "udp")) {
663 n
= slirp_redir_rm(is_udp
, host_port
);
665 monitor_printf(mon
, "removed %d redirections to %s port %d\n", n
,
666 is_udp
? "udp" : "tcp", host_port
);
670 monitor_printf(mon
, "invalid format\n");
673 void net_slirp_redir(Monitor
*mon
, const char *redir_str
, const char *redir_opt2
)
677 const char *p
, *errmsg
;
678 struct in_addr guest_addr
;
679 int host_port
, guest_port
;
683 slirp_init(slirp_restrict
, slirp_ip
);
686 if (!strcmp(redir_str
, "remove")) {
687 net_slirp_redir_rm(mon
, redir_opt2
);
691 if (!strcmp(redir_str
, "list")) {
692 net_slirp_redir_list(mon
);
697 if (get_str_sep(buf
, sizeof(buf
), &p
, ':') < 0)
699 if (!strcmp(buf
, "tcp") || buf
[0] == '\0') {
701 } else if (!strcmp(buf
, "udp")) {
707 if (get_str_sep(buf
, sizeof(buf
), &p
, ':') < 0)
709 host_port
= strtol(buf
, &r
, 0);
713 if (get_str_sep(buf
, sizeof(buf
), &p
, ':') < 0)
715 if (buf
[0] == '\0') {
716 pstrcpy(buf
, sizeof(buf
), "10.0.2.15");
718 if (!inet_aton(buf
, &guest_addr
))
721 guest_port
= strtol(p
, &r
, 0);
725 if (slirp_redir(is_udp
, host_port
, guest_addr
, guest_port
) < 0) {
726 errmsg
= "could not set up redirection\n";
732 errmsg
= "invalid redirection format\n";
735 monitor_printf(mon
, "%s", errmsg
);
737 fprintf(stderr
, "qemu: %s", errmsg
);
744 static char smb_dir
[1024];
746 static void erase_dir(char *dir_name
)
752 /* erase all the files in the directory */
753 if ((d
= opendir(dir_name
)) != NULL
) {
758 if (strcmp(de
->d_name
, ".") != 0 &&
759 strcmp(de
->d_name
, "..") != 0) {
760 snprintf(filename
, sizeof(filename
), "%s/%s",
761 smb_dir
, de
->d_name
);
762 if (unlink(filename
) != 0) /* is it a directory? */
771 /* automatic user mode samba server configuration */
772 static void smb_exit(void)
777 /* automatic user mode samba server configuration */
778 void net_slirp_smb(const char *exported_dir
)
781 char smb_cmdline
[1024];
786 slirp_init(slirp_restrict
, slirp_ip
);
789 /* XXX: better tmp dir construction */
790 snprintf(smb_dir
, sizeof(smb_dir
), "/tmp/qemu-smb.%ld", (long)getpid());
791 if (mkdir(smb_dir
, 0700) < 0) {
792 fprintf(stderr
, "qemu: could not create samba server dir '%s'\n", smb_dir
);
795 snprintf(smb_conf
, sizeof(smb_conf
), "%s/%s", smb_dir
, "smb.conf");
797 f
= fopen(smb_conf
, "w");
799 fprintf(stderr
, "qemu: could not create samba server configuration file '%s'\n", smb_conf
);
806 "socket address=127.0.0.1\n"
808 "lock directory=%s\n"
809 "log file=%s/log.smbd\n"
810 "smb passwd file=%s/smbpasswd\n"
826 snprintf(smb_cmdline
, sizeof(smb_cmdline
), "%s -s %s",
827 SMBD_COMMAND
, smb_conf
);
829 slirp_add_exec(0, smb_cmdline
, 4, 139);
832 #endif /* !defined(_WIN32) */
833 void do_info_slirp(Monitor
*mon
)
843 static int vmchannel_can_read(void *opaque
)
845 struct VMChannel
*vmc
= (struct VMChannel
*)opaque
;
846 return slirp_socket_can_recv(4, vmc
->port
);
849 static void vmchannel_read(void *opaque
, const uint8_t *buf
, int size
)
851 struct VMChannel
*vmc
= (struct VMChannel
*)opaque
;
852 slirp_socket_recv(4, vmc
->port
, buf
, size
);
855 #endif /* CONFIG_SLIRP */
859 typedef struct TAPState
{
862 char down_script
[1024];
863 char down_script_arg
[128];
866 static int launch_script(const char *setup_script
, const char *ifname
, int fd
);
868 static ssize_t
tap_receive_iov(void *opaque
, const struct iovec
*iov
,
871 TAPState
*s
= opaque
;
875 len
= writev(s
->fd
, iov
, iovcnt
);
876 } while (len
== -1 && (errno
== EINTR
|| errno
== EAGAIN
));
881 static void tap_receive(void *opaque
, const uint8_t *buf
, int size
)
883 TAPState
*s
= opaque
;
886 ret
= write(s
->fd
, buf
, size
);
887 if (ret
< 0 && (errno
== EINTR
|| errno
== EAGAIN
)) {
894 static void tap_send(void *opaque
)
896 TAPState
*s
= opaque
;
903 sbuf
.maxlen
= sizeof(buf
);
904 sbuf
.buf
= (char *)buf
;
905 size
= getmsg(s
->fd
, NULL
, &sbuf
, &f
) >=0 ? sbuf
.len
: -1;
907 size
= read(s
->fd
, buf
, sizeof(buf
));
910 qemu_send_packet(s
->vc
, buf
, size
);
914 static void tap_cleanup(VLANClientState
*vc
)
916 TAPState
*s
= vc
->opaque
;
918 if (s
->down_script
[0])
919 launch_script(s
->down_script
, s
->down_script_arg
, s
->fd
);
921 qemu_set_fd_handler(s
->fd
, NULL
, NULL
, NULL
);
928 static TAPState
*net_tap_fd_init(VLANState
*vlan
,
935 s
= qemu_mallocz(sizeof(TAPState
));
937 s
->vc
= qemu_new_vlan_client(vlan
, model
, name
, tap_receive
,
938 NULL
, tap_cleanup
, s
);
939 s
->vc
->fd_readv
= tap_receive_iov
;
940 qemu_set_fd_handler(s
->fd
, tap_send
, NULL
, s
);
941 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
), "fd=%d", fd
);
945 #if defined (HOST_BSD) || defined (__FreeBSD_kernel__)
946 static int tap_open(char *ifname
, int ifname_size
)
952 TFR(fd
= open("/dev/tap", O_RDWR
));
954 fprintf(stderr
, "warning: could not open /dev/tap: no virtual network emulation\n");
959 dev
= devname(s
.st_rdev
, S_IFCHR
);
960 pstrcpy(ifname
, ifname_size
, dev
);
962 fcntl(fd
, F_SETFL
, O_NONBLOCK
);
965 #elif defined(__sun__)
966 #define TUNNEWPPA (('T'<<16) | 0x0001)
968 * Allocate TAP device, returns opened fd.
969 * Stores dev name in the first arg(must be large enough).
971 static int tap_alloc(char *dev
, size_t dev_size
)
973 int tap_fd
, if_fd
, ppa
= -1;
974 static int ip_fd
= 0;
977 static int arp_fd
= 0;
978 int ip_muxid
, arp_muxid
;
979 struct strioctl strioc_if
, strioc_ppa
;
980 int link_type
= I_PLINK
;;
982 char actual_name
[32] = "";
984 memset(&ifr
, 0x0, sizeof(ifr
));
988 while( *ptr
&& !qemu_isdigit((int)*ptr
) ) ptr
++;
992 /* Check if IP device was opened */
996 TFR(ip_fd
= open("/dev/udp", O_RDWR
, 0));
998 syslog(LOG_ERR
, "Can't open /dev/ip (actually /dev/udp)");
1002 TFR(tap_fd
= open("/dev/tap", O_RDWR
, 0));
1004 syslog(LOG_ERR
, "Can't open /dev/tap");
1008 /* Assign a new PPA and get its unit number. */
1009 strioc_ppa
.ic_cmd
= TUNNEWPPA
;
1010 strioc_ppa
.ic_timout
= 0;
1011 strioc_ppa
.ic_len
= sizeof(ppa
);
1012 strioc_ppa
.ic_dp
= (char *)&ppa
;
1013 if ((ppa
= ioctl (tap_fd
, I_STR
, &strioc_ppa
)) < 0)
1014 syslog (LOG_ERR
, "Can't assign new interface");
1016 TFR(if_fd
= open("/dev/tap", O_RDWR
, 0));
1018 syslog(LOG_ERR
, "Can't open /dev/tap (2)");
1021 if(ioctl(if_fd
, I_PUSH
, "ip") < 0){
1022 syslog(LOG_ERR
, "Can't push IP module");
1026 if (ioctl(if_fd
, SIOCGLIFFLAGS
, &ifr
) < 0)
1027 syslog(LOG_ERR
, "Can't get flags\n");
1029 snprintf (actual_name
, 32, "tap%d", ppa
);
1030 pstrcpy(ifr
.lifr_name
, sizeof(ifr
.lifr_name
), actual_name
);
1033 /* Assign ppa according to the unit number returned by tun device */
1035 if (ioctl (if_fd
, SIOCSLIFNAME
, &ifr
) < 0)
1036 syslog (LOG_ERR
, "Can't set PPA %d", ppa
);
1037 if (ioctl(if_fd
, SIOCGLIFFLAGS
, &ifr
) <0)
1038 syslog (LOG_ERR
, "Can't get flags\n");
1039 /* Push arp module to if_fd */
1040 if (ioctl (if_fd
, I_PUSH
, "arp") < 0)
1041 syslog (LOG_ERR
, "Can't push ARP module (2)");
1043 /* Push arp module to ip_fd */
1044 if (ioctl (ip_fd
, I_POP
, NULL
) < 0)
1045 syslog (LOG_ERR
, "I_POP failed\n");
1046 if (ioctl (ip_fd
, I_PUSH
, "arp") < 0)
1047 syslog (LOG_ERR
, "Can't push ARP module (3)\n");
1049 TFR(arp_fd
= open ("/dev/tap", O_RDWR
, 0));
1051 syslog (LOG_ERR
, "Can't open %s\n", "/dev/tap");
1053 /* Set ifname to arp */
1054 strioc_if
.ic_cmd
= SIOCSLIFNAME
;
1055 strioc_if
.ic_timout
= 0;
1056 strioc_if
.ic_len
= sizeof(ifr
);
1057 strioc_if
.ic_dp
= (char *)&ifr
;
1058 if (ioctl(arp_fd
, I_STR
, &strioc_if
) < 0){
1059 syslog (LOG_ERR
, "Can't set ifname to arp\n");
1062 if((ip_muxid
= ioctl(ip_fd
, I_LINK
, if_fd
)) < 0){
1063 syslog(LOG_ERR
, "Can't link TAP device to IP");
1067 if ((arp_muxid
= ioctl (ip_fd
, link_type
, arp_fd
)) < 0)
1068 syslog (LOG_ERR
, "Can't link TAP device to ARP");
1072 memset(&ifr
, 0x0, sizeof(ifr
));
1073 pstrcpy(ifr
.lifr_name
, sizeof(ifr
.lifr_name
), actual_name
);
1074 ifr
.lifr_ip_muxid
= ip_muxid
;
1075 ifr
.lifr_arp_muxid
= arp_muxid
;
1077 if (ioctl (ip_fd
, SIOCSLIFMUXID
, &ifr
) < 0)
1079 ioctl (ip_fd
, I_PUNLINK
, arp_muxid
);
1080 ioctl (ip_fd
, I_PUNLINK
, ip_muxid
);
1081 syslog (LOG_ERR
, "Can't set multiplexor id");
1084 snprintf(dev
, dev_size
, "tap%d", ppa
);
1088 static int tap_open(char *ifname
, int ifname_size
)
1092 if( (fd
= tap_alloc(dev
, sizeof(dev
))) < 0 ){
1093 fprintf(stderr
, "Cannot allocate TAP device\n");
1096 pstrcpy(ifname
, ifname_size
, dev
);
1097 fcntl(fd
, F_SETFL
, O_NONBLOCK
);
1100 #elif defined (_AIX)
1101 static int tap_open(char *ifname
, int ifname_size
)
1103 fprintf (stderr
, "no tap on AIX\n");
1107 static int tap_open(char *ifname
, int ifname_size
)
1112 TFR(fd
= open("/dev/net/tun", O_RDWR
));
1114 fprintf(stderr
, "warning: could not open /dev/net/tun: no virtual network emulation\n");
1117 memset(&ifr
, 0, sizeof(ifr
));
1118 ifr
.ifr_flags
= IFF_TAP
| IFF_NO_PI
;
1119 if (ifname
[0] != '\0')
1120 pstrcpy(ifr
.ifr_name
, IFNAMSIZ
, ifname
);
1122 pstrcpy(ifr
.ifr_name
, IFNAMSIZ
, "tap%d");
1123 ret
= ioctl(fd
, TUNSETIFF
, (void *) &ifr
);
1125 fprintf(stderr
, "warning: could not configure /dev/net/tun: no virtual network emulation\n");
1129 pstrcpy(ifname
, ifname_size
, ifr
.ifr_name
);
1130 fcntl(fd
, F_SETFL
, O_NONBLOCK
);
1135 static int launch_script(const char *setup_script
, const char *ifname
, int fd
)
1141 /* try to launch network script */
1145 int open_max
= sysconf (_SC_OPEN_MAX
), i
;
1146 for (i
= 0; i
< open_max
; i
++)
1147 if (i
!= STDIN_FILENO
&&
1148 i
!= STDOUT_FILENO
&&
1149 i
!= STDERR_FILENO
&&
1154 *parg
++ = (char *)setup_script
;
1155 *parg
++ = (char *)ifname
;
1157 execv(setup_script
, args
);
1160 while (waitpid(pid
, &status
, 0) != pid
);
1161 if (!WIFEXITED(status
) ||
1162 WEXITSTATUS(status
) != 0) {
1163 fprintf(stderr
, "%s: could not launch network script\n",
1171 static int net_tap_init(VLANState
*vlan
, const char *model
,
1172 const char *name
, const char *ifname1
,
1173 const char *setup_script
, const char *down_script
)
1179 if (ifname1
!= NULL
)
1180 pstrcpy(ifname
, sizeof(ifname
), ifname1
);
1183 TFR(fd
= tap_open(ifname
, sizeof(ifname
)));
1187 if (!setup_script
|| !strcmp(setup_script
, "no"))
1189 if (setup_script
[0] != '\0') {
1190 if (launch_script(setup_script
, ifname
, fd
))
1193 s
= net_tap_fd_init(vlan
, model
, name
, fd
);
1194 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
),
1195 "ifname=%s,script=%s,downscript=%s",
1196 ifname
, setup_script
, down_script
);
1197 if (down_script
&& strcmp(down_script
, "no")) {
1198 snprintf(s
->down_script
, sizeof(s
->down_script
), "%s", down_script
);
1199 snprintf(s
->down_script_arg
, sizeof(s
->down_script_arg
), "%s", ifname
);
1204 #endif /* !_WIN32 */
1206 #if defined(CONFIG_VDE)
1207 typedef struct VDEState
{
1208 VLANClientState
*vc
;
1212 static void vde_to_qemu(void *opaque
)
1214 VDEState
*s
= opaque
;
1218 size
= vde_recv(s
->vde
, (char *)buf
, sizeof(buf
), 0);
1220 qemu_send_packet(s
->vc
, buf
, size
);
1224 static void vde_from_qemu(void *opaque
, const uint8_t *buf
, int size
)
1226 VDEState
*s
= opaque
;
1229 ret
= vde_send(s
->vde
, (const char *)buf
, size
, 0);
1230 if (ret
< 0 && errno
== EINTR
) {
1237 static void vde_cleanup(VLANClientState
*vc
)
1239 VDEState
*s
= vc
->opaque
;
1240 qemu_set_fd_handler(vde_datafd(s
->vde
), NULL
, NULL
, NULL
);
1245 static int net_vde_init(VLANState
*vlan
, const char *model
,
1246 const char *name
, const char *sock
,
1247 int port
, const char *group
, int mode
)
1250 char *init_group
= strlen(group
) ? (char *)group
: NULL
;
1251 char *init_sock
= strlen(sock
) ? (char *)sock
: NULL
;
1253 struct vde_open_args args
= {
1255 .group
= init_group
,
1259 s
= qemu_mallocz(sizeof(VDEState
));
1260 s
->vde
= vde_open(init_sock
, (char *)"QEMU", &args
);
1265 s
->vc
= qemu_new_vlan_client(vlan
, model
, name
, vde_from_qemu
,
1266 NULL
, vde_cleanup
, s
);
1267 qemu_set_fd_handler(vde_datafd(s
->vde
), vde_to_qemu
, NULL
, s
);
1268 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
), "sock=%s,fd=%d",
1269 sock
, vde_datafd(s
->vde
));
1274 /* network connection */
1275 typedef struct NetSocketState
{
1276 VLANClientState
*vc
;
1278 int state
; /* 0 = getting length, 1 = getting data */
1280 unsigned int packet_len
;
1282 struct sockaddr_in dgram_dst
; /* contains inet host and port destination iff connectionless (SOCK_DGRAM) */
1285 typedef struct NetSocketListenState
{
1290 } NetSocketListenState
;
1292 /* XXX: we consider we can send the whole packet without blocking */
1293 static void net_socket_receive(void *opaque
, const uint8_t *buf
, int size
)
1295 NetSocketState
*s
= opaque
;
1299 send_all(s
->fd
, (const uint8_t *)&len
, sizeof(len
));
1300 send_all(s
->fd
, buf
, size
);
1303 static void net_socket_receive_dgram(void *opaque
, const uint8_t *buf
, int size
)
1305 NetSocketState
*s
= opaque
;
1306 sendto(s
->fd
, buf
, size
, 0,
1307 (struct sockaddr
*)&s
->dgram_dst
, sizeof(s
->dgram_dst
));
1310 static void net_socket_send(void *opaque
)
1312 NetSocketState
*s
= opaque
;
1318 size
= recv(s
->fd
, buf1
, sizeof(buf1
), 0);
1320 err
= socket_error();
1321 if (err
!= EWOULDBLOCK
)
1323 } else if (size
== 0) {
1324 /* end of connection */
1326 qemu_set_fd_handler(s
->fd
, NULL
, NULL
, NULL
);
1332 /* reassemble a packet from the network */
1338 memcpy(s
->buf
+ s
->index
, buf
, l
);
1342 if (s
->index
== 4) {
1344 s
->packet_len
= ntohl(*(uint32_t *)s
->buf
);
1350 l
= s
->packet_len
- s
->index
;
1353 if (s
->index
+ l
<= sizeof(s
->buf
)) {
1354 memcpy(s
->buf
+ s
->index
, buf
, l
);
1356 fprintf(stderr
, "serious error: oversized packet received,"
1357 "connection terminated.\n");
1365 if (s
->index
>= s
->packet_len
) {
1366 qemu_send_packet(s
->vc
, s
->buf
, s
->packet_len
);
1375 static void net_socket_send_dgram(void *opaque
)
1377 NetSocketState
*s
= opaque
;
1380 size
= recv(s
->fd
, s
->buf
, sizeof(s
->buf
), 0);
1384 /* end of connection */
1385 qemu_set_fd_handler(s
->fd
, NULL
, NULL
, NULL
);
1388 qemu_send_packet(s
->vc
, s
->buf
, size
);
1391 static int net_socket_mcast_create(struct sockaddr_in
*mcastaddr
)
1396 if (!IN_MULTICAST(ntohl(mcastaddr
->sin_addr
.s_addr
))) {
1397 fprintf(stderr
, "qemu: error: specified mcastaddr \"%s\" (0x%08x) does not contain a multicast address\n",
1398 inet_ntoa(mcastaddr
->sin_addr
),
1399 (int)ntohl(mcastaddr
->sin_addr
.s_addr
));
1403 fd
= socket(PF_INET
, SOCK_DGRAM
, 0);
1405 perror("socket(PF_INET, SOCK_DGRAM)");
1410 ret
=setsockopt(fd
, SOL_SOCKET
, SO_REUSEADDR
,
1411 (const char *)&val
, sizeof(val
));
1413 perror("setsockopt(SOL_SOCKET, SO_REUSEADDR)");
1417 ret
= bind(fd
, (struct sockaddr
*)mcastaddr
, sizeof(*mcastaddr
));
1423 /* Add host to multicast group */
1424 imr
.imr_multiaddr
= mcastaddr
->sin_addr
;
1425 imr
.imr_interface
.s_addr
= htonl(INADDR_ANY
);
1427 ret
= setsockopt(fd
, IPPROTO_IP
, IP_ADD_MEMBERSHIP
,
1428 (const char *)&imr
, sizeof(struct ip_mreq
));
1430 perror("setsockopt(IP_ADD_MEMBERSHIP)");
1434 /* Force mcast msgs to loopback (eg. several QEMUs in same host */
1436 ret
=setsockopt(fd
, IPPROTO_IP
, IP_MULTICAST_LOOP
,
1437 (const char *)&val
, sizeof(val
));
1439 perror("setsockopt(SOL_IP, IP_MULTICAST_LOOP)");
1443 socket_set_nonblock(fd
);
1451 static void net_socket_cleanup(VLANClientState
*vc
)
1453 NetSocketState
*s
= vc
->opaque
;
1454 qemu_set_fd_handler(s
->fd
, NULL
, NULL
, NULL
);
1459 static NetSocketState
*net_socket_fd_init_dgram(VLANState
*vlan
,
1462 int fd
, int is_connected
)
1464 struct sockaddr_in saddr
;
1466 socklen_t saddr_len
;
1469 /* fd passed: multicast: "learn" dgram_dst address from bound address and save it
1470 * Because this may be "shared" socket from a "master" process, datagrams would be recv()
1471 * by ONLY ONE process: we must "clone" this dgram socket --jjo
1475 if (getsockname(fd
, (struct sockaddr
*) &saddr
, &saddr_len
) == 0) {
1477 if (saddr
.sin_addr
.s_addr
==0) {
1478 fprintf(stderr
, "qemu: error: init_dgram: fd=%d unbound, cannot setup multicast dst addr\n",
1482 /* clone dgram socket */
1483 newfd
= net_socket_mcast_create(&saddr
);
1485 /* error already reported by net_socket_mcast_create() */
1489 /* clone newfd to fd, close newfd */
1494 fprintf(stderr
, "qemu: error: init_dgram: fd=%d failed getsockname(): %s\n",
1495 fd
, strerror(errno
));
1500 s
= qemu_mallocz(sizeof(NetSocketState
));
1503 s
->vc
= qemu_new_vlan_client(vlan
, model
, name
, net_socket_receive_dgram
,
1504 NULL
, net_socket_cleanup
, s
);
1505 qemu_set_fd_handler(s
->fd
, net_socket_send_dgram
, NULL
, s
);
1507 /* mcast: save bound address as dst */
1508 if (is_connected
) s
->dgram_dst
=saddr
;
1510 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
),
1511 "socket: fd=%d (%s mcast=%s:%d)",
1512 fd
, is_connected
? "cloned" : "",
1513 inet_ntoa(saddr
.sin_addr
), ntohs(saddr
.sin_port
));
1517 static void net_socket_connect(void *opaque
)
1519 NetSocketState
*s
= opaque
;
1520 qemu_set_fd_handler(s
->fd
, net_socket_send
, NULL
, s
);
1523 static NetSocketState
*net_socket_fd_init_stream(VLANState
*vlan
,
1526 int fd
, int is_connected
)
1529 s
= qemu_mallocz(sizeof(NetSocketState
));
1531 s
->vc
= qemu_new_vlan_client(vlan
, model
, name
, net_socket_receive
,
1532 NULL
, net_socket_cleanup
, s
);
1533 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
),
1534 "socket: fd=%d", fd
);
1536 net_socket_connect(s
);
1538 qemu_set_fd_handler(s
->fd
, NULL
, net_socket_connect
, s
);
1543 static NetSocketState
*net_socket_fd_init(VLANState
*vlan
,
1544 const char *model
, const char *name
,
1545 int fd
, int is_connected
)
1547 int so_type
=-1, optlen
=sizeof(so_type
);
1549 if(getsockopt(fd
, SOL_SOCKET
, SO_TYPE
, (char *)&so_type
,
1550 (socklen_t
*)&optlen
)< 0) {
1551 fprintf(stderr
, "qemu: error: getsockopt(SO_TYPE) for fd=%d failed\n", fd
);
1556 return net_socket_fd_init_dgram(vlan
, model
, name
, fd
, is_connected
);
1558 return net_socket_fd_init_stream(vlan
, model
, name
, fd
, is_connected
);
1560 /* who knows ... this could be a eg. a pty, do warn and continue as stream */
1561 fprintf(stderr
, "qemu: warning: socket type=%d for fd=%d is not SOCK_DGRAM or SOCK_STREAM\n", so_type
, fd
);
1562 return net_socket_fd_init_stream(vlan
, model
, name
, fd
, is_connected
);
1567 static void net_socket_accept(void *opaque
)
1569 NetSocketListenState
*s
= opaque
;
1571 struct sockaddr_in saddr
;
1576 len
= sizeof(saddr
);
1577 fd
= accept(s
->fd
, (struct sockaddr
*)&saddr
, &len
);
1578 if (fd
< 0 && errno
!= EINTR
) {
1580 } else if (fd
>= 0) {
1584 s1
= net_socket_fd_init(s
->vlan
, s
->model
, s
->name
, fd
, 1);
1588 snprintf(s1
->vc
->info_str
, sizeof(s1
->vc
->info_str
),
1589 "socket: connection from %s:%d",
1590 inet_ntoa(saddr
.sin_addr
), ntohs(saddr
.sin_port
));
1594 static int net_socket_listen_init(VLANState
*vlan
,
1597 const char *host_str
)
1599 NetSocketListenState
*s
;
1601 struct sockaddr_in saddr
;
1603 if (parse_host_port(&saddr
, host_str
) < 0)
1606 s
= qemu_mallocz(sizeof(NetSocketListenState
));
1608 fd
= socket(PF_INET
, SOCK_STREAM
, 0);
1613 socket_set_nonblock(fd
);
1615 /* allow fast reuse */
1617 setsockopt(fd
, SOL_SOCKET
, SO_REUSEADDR
, (const char *)&val
, sizeof(val
));
1619 ret
= bind(fd
, (struct sockaddr
*)&saddr
, sizeof(saddr
));
1624 ret
= listen(fd
, 0);
1630 s
->model
= strdup(model
);
1631 s
->name
= name
? strdup(name
) : NULL
;
1633 qemu_set_fd_handler(fd
, net_socket_accept
, NULL
, s
);
1637 static int net_socket_connect_init(VLANState
*vlan
,
1640 const char *host_str
)
1643 int fd
, connected
, ret
, err
;
1644 struct sockaddr_in saddr
;
1646 if (parse_host_port(&saddr
, host_str
) < 0)
1649 fd
= socket(PF_INET
, SOCK_STREAM
, 0);
1654 socket_set_nonblock(fd
);
1658 ret
= connect(fd
, (struct sockaddr
*)&saddr
, sizeof(saddr
));
1660 err
= socket_error();
1661 if (err
== EINTR
|| err
== EWOULDBLOCK
) {
1662 } else if (err
== EINPROGRESS
) {
1665 } else if (err
== WSAEALREADY
) {
1678 s
= net_socket_fd_init(vlan
, model
, name
, fd
, connected
);
1681 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
),
1682 "socket: connect to %s:%d",
1683 inet_ntoa(saddr
.sin_addr
), ntohs(saddr
.sin_port
));
1687 static int net_socket_mcast_init(VLANState
*vlan
,
1690 const char *host_str
)
1694 struct sockaddr_in saddr
;
1696 if (parse_host_port(&saddr
, host_str
) < 0)
1700 fd
= net_socket_mcast_create(&saddr
);
1704 s
= net_socket_fd_init(vlan
, model
, name
, fd
, 0);
1708 s
->dgram_dst
= saddr
;
1710 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
),
1711 "socket: mcast=%s:%d",
1712 inet_ntoa(saddr
.sin_addr
), ntohs(saddr
.sin_port
));
1717 typedef struct DumpState
{
1718 VLANClientState
*pcap_vc
;
1723 #define PCAP_MAGIC 0xa1b2c3d4
1725 struct pcap_file_hdr
{
1727 uint16_t version_major
;
1728 uint16_t version_minor
;
1735 struct pcap_sf_pkthdr
{
1744 static void dump_receive(void *opaque
, const uint8_t *buf
, int size
)
1746 DumpState
*s
= opaque
;
1747 struct pcap_sf_pkthdr hdr
;
1751 /* Early return in case of previous error. */
1756 ts
= muldiv64(qemu_get_clock(vm_clock
), 1000000, ticks_per_sec
);
1757 caplen
= size
> s
->pcap_caplen
? s
->pcap_caplen
: size
;
1759 hdr
.ts
.tv_sec
= ts
/ 1000000;
1760 hdr
.ts
.tv_usec
= ts
% 1000000;
1761 hdr
.caplen
= caplen
;
1763 if (write(s
->fd
, &hdr
, sizeof(hdr
)) != sizeof(hdr
) ||
1764 write(s
->fd
, buf
, caplen
) != caplen
) {
1765 qemu_log("-net dump write error - stop dump\n");
1771 static void net_dump_cleanup(VLANClientState
*vc
)
1773 DumpState
*s
= vc
->opaque
;
1779 static int net_dump_init(VLANState
*vlan
, const char *device
,
1780 const char *name
, const char *filename
, int len
)
1782 struct pcap_file_hdr hdr
;
1785 s
= qemu_malloc(sizeof(DumpState
));
1787 s
->fd
= open(filename
, O_CREAT
| O_WRONLY
, 0644);
1789 fprintf(stderr
, "-net dump: can't open %s\n", filename
);
1793 s
->pcap_caplen
= len
;
1795 hdr
.magic
= PCAP_MAGIC
;
1796 hdr
.version_major
= 2;
1797 hdr
.version_minor
= 4;
1800 hdr
.snaplen
= s
->pcap_caplen
;
1803 if (write(s
->fd
, &hdr
, sizeof(hdr
)) < sizeof(hdr
)) {
1804 perror("-net dump write error");
1810 s
->pcap_vc
= qemu_new_vlan_client(vlan
, device
, name
, dump_receive
, NULL
,
1811 net_dump_cleanup
, s
);
1812 snprintf(s
->pcap_vc
->info_str
, sizeof(s
->pcap_vc
->info_str
),
1813 "dump to %s (len=%d)", filename
, len
);
1817 /* find or alloc a new VLAN */
1818 VLANState
*qemu_find_vlan(int id
)
1820 VLANState
**pvlan
, *vlan
;
1821 for(vlan
= first_vlan
; vlan
!= NULL
; vlan
= vlan
->next
) {
1825 vlan
= qemu_mallocz(sizeof(VLANState
));
1828 pvlan
= &first_vlan
;
1829 while (*pvlan
!= NULL
)
1830 pvlan
= &(*pvlan
)->next
;
1835 static int nic_get_free_idx(void)
1839 for (index
= 0; index
< MAX_NICS
; index
++)
1840 if (!nd_table
[index
].used
)
1845 void qemu_check_nic_model(NICInfo
*nd
, const char *model
)
1847 const char *models
[2];
1852 qemu_check_nic_model_list(nd
, models
, model
);
1855 void qemu_check_nic_model_list(NICInfo
*nd
, const char * const *models
,
1856 const char *default_model
)
1858 int i
, exit_status
= 0;
1861 nd
->model
= strdup(default_model
);
1863 if (strcmp(nd
->model
, "?") != 0) {
1864 for (i
= 0 ; models
[i
]; i
++)
1865 if (strcmp(nd
->model
, models
[i
]) == 0)
1868 fprintf(stderr
, "qemu: Unsupported NIC model: %s\n", nd
->model
);
1872 fprintf(stderr
, "qemu: Supported NIC models: ");
1873 for (i
= 0 ; models
[i
]; i
++)
1874 fprintf(stderr
, "%s%c", models
[i
], models
[i
+1] ? ',' : '\n');
1879 int net_client_init(const char *device
, const char *p
)
1881 static const char * const fd_params
[] = {
1882 "vlan", "name", "fd", NULL
1890 if (get_param_value(buf
, sizeof(buf
), "vlan", p
)) {
1891 vlan_id
= strtol(buf
, NULL
, 0);
1893 vlan
= qemu_find_vlan(vlan_id
);
1895 if (get_param_value(buf
, sizeof(buf
), "name", p
)) {
1898 if (!strcmp(device
, "nic")) {
1899 static const char * const nic_params
[] = {
1900 "vlan", "name", "macaddr", "model", NULL
1904 int idx
= nic_get_free_idx();
1906 if (check_params(nic_params
, p
) < 0) {
1907 fprintf(stderr
, "qemu: invalid parameter in '%s'\n", p
);
1910 if (idx
== -1 || nb_nics
>= MAX_NICS
) {
1911 fprintf(stderr
, "Too Many NICs\n");
1915 nd
= &nd_table
[idx
];
1916 macaddr
= nd
->macaddr
;
1922 macaddr
[5] = 0x56 + idx
;
1924 if (get_param_value(buf
, sizeof(buf
), "macaddr", p
)) {
1925 if (parse_macaddr(macaddr
, buf
) < 0) {
1926 fprintf(stderr
, "invalid syntax for ethernet address\n");
1931 if (get_param_value(buf
, sizeof(buf
), "model", p
)) {
1932 nd
->model
= strdup(buf
);
1939 vlan
->nb_guest_devs
++;
1942 if (!strcmp(device
, "none")) {
1944 fprintf(stderr
, "qemu: 'none' takes no parameters\n");
1947 /* does nothing. It is needed to signal that no network cards
1952 if (!strcmp(device
, "user")) {
1953 static const char * const slirp_params
[] = {
1954 "vlan", "name", "hostname", "restrict", "ip", NULL
1956 if (check_params(slirp_params
, p
) < 0) {
1957 fprintf(stderr
, "qemu: invalid parameter in '%s'\n", p
);
1960 if (get_param_value(buf
, sizeof(buf
), "hostname", p
)) {
1961 pstrcpy(slirp_hostname
, sizeof(slirp_hostname
), buf
);
1963 if (get_param_value(buf
, sizeof(buf
), "restrict", p
)) {
1964 slirp_restrict
= (buf
[0] == 'y') ? 1 : 0;
1966 if (get_param_value(buf
, sizeof(buf
), "ip", p
)) {
1967 slirp_ip
= strdup(buf
);
1969 vlan
->nb_host_devs
++;
1970 ret
= net_slirp_init(vlan
, device
, name
);
1971 } else if (!strcmp(device
, "channel")) {
1973 char name
[20], *devname
;
1974 struct VMChannel
*vmc
;
1976 port
= strtol(p
, &devname
, 10);
1978 if (port
< 1 || port
> 65535) {
1979 fprintf(stderr
, "vmchannel wrong port number\n");
1983 vmc
= malloc(sizeof(struct VMChannel
));
1984 snprintf(name
, 20, "vmchannel%ld", port
);
1985 vmc
->hd
= qemu_chr_open(name
, devname
, NULL
);
1987 fprintf(stderr
, "qemu: could not open vmchannel device"
1993 slirp_add_exec(3, vmc
->hd
, 4, port
);
1994 qemu_chr_add_handlers(vmc
->hd
, vmchannel_can_read
, vmchannel_read
,
2000 if (!strcmp(device
, "tap")) {
2001 static const char * const tap_params
[] = {
2002 "vlan", "name", "ifname", NULL
2006 if (check_params(tap_params
, p
) < 0) {
2007 fprintf(stderr
, "qemu: invalid parameter in '%s'\n", p
);
2010 if (get_param_value(ifname
, sizeof(ifname
), "ifname", p
) <= 0) {
2011 fprintf(stderr
, "tap: no interface name\n");
2015 vlan
->nb_host_devs
++;
2016 ret
= tap_win32_init(vlan
, device
, name
, ifname
);
2018 #elif defined (_AIX)
2020 if (!strcmp(device
, "tap")) {
2022 char setup_script
[1024], down_script
[1024];
2024 vlan
->nb_host_devs
++;
2025 if (get_param_value(buf
, sizeof(buf
), "fd", p
) > 0) {
2026 if (check_params(fd_params
, p
) < 0) {
2027 fprintf(stderr
, "qemu: invalid parameter in '%s'\n", p
);
2030 fd
= strtol(buf
, NULL
, 0);
2031 fcntl(fd
, F_SETFL
, O_NONBLOCK
);
2032 net_tap_fd_init(vlan
, device
, name
, fd
);
2035 static const char * const tap_params
[] = {
2036 "vlan", "name", "ifname", "script", "downscript", NULL
2038 if (check_params(tap_params
, p
) < 0) {
2039 fprintf(stderr
, "qemu: invalid parameter in '%s'\n", p
);
2042 if (get_param_value(ifname
, sizeof(ifname
), "ifname", p
) <= 0) {
2045 if (get_param_value(setup_script
, sizeof(setup_script
), "script", p
) == 0) {
2046 pstrcpy(setup_script
, sizeof(setup_script
), DEFAULT_NETWORK_SCRIPT
);
2048 if (get_param_value(down_script
, sizeof(down_script
), "downscript", p
) == 0) {
2049 pstrcpy(down_script
, sizeof(down_script
), DEFAULT_NETWORK_DOWN_SCRIPT
);
2051 ret
= net_tap_init(vlan
, device
, name
, ifname
, setup_script
, down_script
);
2055 if (!strcmp(device
, "socket")) {
2056 if (get_param_value(buf
, sizeof(buf
), "fd", p
) > 0) {
2058 if (check_params(fd_params
, p
) < 0) {
2059 fprintf(stderr
, "qemu: invalid parameter in '%s'\n", p
);
2062 fd
= strtol(buf
, NULL
, 0);
2064 if (net_socket_fd_init(vlan
, device
, name
, fd
, 1))
2066 } else if (get_param_value(buf
, sizeof(buf
), "listen", p
) > 0) {
2067 static const char * const listen_params
[] = {
2068 "vlan", "name", "listen", NULL
2070 if (check_params(listen_params
, p
) < 0) {
2071 fprintf(stderr
, "qemu: invalid parameter in '%s'\n", p
);
2074 ret
= net_socket_listen_init(vlan
, device
, name
, buf
);
2075 } else if (get_param_value(buf
, sizeof(buf
), "connect", p
) > 0) {
2076 static const char * const connect_params
[] = {
2077 "vlan", "name", "connect", NULL
2079 if (check_params(connect_params
, p
) < 0) {
2080 fprintf(stderr
, "qemu: invalid parameter in '%s'\n", p
);
2083 ret
= net_socket_connect_init(vlan
, device
, name
, buf
);
2084 } else if (get_param_value(buf
, sizeof(buf
), "mcast", p
) > 0) {
2085 static const char * const mcast_params
[] = {
2086 "vlan", "name", "mcast", NULL
2088 if (check_params(mcast_params
, p
) < 0) {
2089 fprintf(stderr
, "qemu: invalid parameter in '%s'\n", p
);
2092 ret
= net_socket_mcast_init(vlan
, device
, name
, buf
);
2094 fprintf(stderr
, "Unknown socket options: %s\n", p
);
2098 vlan
->nb_host_devs
++;
2101 if (!strcmp(device
, "vde")) {
2102 static const char * const vde_params
[] = {
2103 "vlan", "name", "sock", "port", "group", "mode", NULL
2105 char vde_sock
[1024], vde_group
[512];
2106 int vde_port
, vde_mode
;
2108 if (check_params(vde_params
, p
) < 0) {
2109 fprintf(stderr
, "qemu: invalid parameter in '%s'\n", p
);
2112 vlan
->nb_host_devs
++;
2113 if (get_param_value(vde_sock
, sizeof(vde_sock
), "sock", p
) <= 0) {
2116 if (get_param_value(buf
, sizeof(buf
), "port", p
) > 0) {
2117 vde_port
= strtol(buf
, NULL
, 10);
2121 if (get_param_value(vde_group
, sizeof(vde_group
), "group", p
) <= 0) {
2122 vde_group
[0] = '\0';
2124 if (get_param_value(buf
, sizeof(buf
), "mode", p
) > 0) {
2125 vde_mode
= strtol(buf
, NULL
, 8);
2129 ret
= net_vde_init(vlan
, device
, name
, vde_sock
, vde_port
, vde_group
, vde_mode
);
2132 if (!strcmp(device
, "dump")) {
2135 if (get_param_value(buf
, sizeof(buf
), "len", p
) > 0) {
2136 len
= strtol(buf
, NULL
, 0);
2138 if (!get_param_value(buf
, sizeof(buf
), "file", p
)) {
2139 snprintf(buf
, sizeof(buf
), "qemu-vlan%d.pcap", vlan_id
);
2141 ret
= net_dump_init(vlan
, device
, name
, buf
, len
);
2143 fprintf(stderr
, "Unknown network device: %s\n", device
);
2148 fprintf(stderr
, "Could not initialize device '%s'\n", device
);
2156 void net_client_uninit(NICInfo
*nd
)
2158 nd
->vlan
->nb_guest_devs
--;
2161 free((void *)nd
->model
);
2164 static int net_host_check_device(const char *device
)
2167 const char *valid_param_list
[] = { "tap", "socket", "dump"
2175 for (i
= 0; i
< sizeof(valid_param_list
) / sizeof(char *); i
++) {
2176 if (!strncmp(valid_param_list
[i
], device
,
2177 strlen(valid_param_list
[i
])))
2184 void net_host_device_add(Monitor
*mon
, const char *device
, const char *opts
)
2186 if (!net_host_check_device(device
)) {
2187 monitor_printf(mon
, "invalid host network device %s\n", device
);
2190 if (net_client_init(device
, opts
? opts
: "") < 0) {
2191 monitor_printf(mon
, "adding host network device %s failed\n", device
);
2195 void net_host_device_remove(Monitor
*mon
, int vlan_id
, const char *device
)
2198 VLANClientState
*vc
;
2200 vlan
= qemu_find_vlan(vlan_id
);
2202 for (vc
= vlan
->first_client
; vc
!= NULL
; vc
= vc
->next
) {
2203 if (!strcmp(vc
->name
, device
)) {
2209 monitor_printf(mon
, "can't find device %s\n", device
);
2212 if (!net_host_check_device(vc
->model
)) {
2213 monitor_printf(mon
, "invalid host network device %s\n", device
);
2216 qemu_del_vlan_client(vc
);
2219 int net_client_parse(const char *str
)
2227 while (*p
!= '\0' && *p
!= ',') {
2228 if ((q
- device
) < sizeof(device
) - 1)
2236 return net_client_init(device
, p
);
2239 void do_info_network(Monitor
*mon
)
2242 VLANClientState
*vc
;
2244 for(vlan
= first_vlan
; vlan
!= NULL
; vlan
= vlan
->next
) {
2245 monitor_printf(mon
, "VLAN %d devices:\n", vlan
->id
);
2246 for(vc
= vlan
->first_client
; vc
!= NULL
; vc
= vc
->next
)
2247 monitor_printf(mon
, " %s: %s\n", vc
->name
, vc
->info_str
);
2251 int do_set_link(Monitor
*mon
, const char *name
, const char *up_or_down
)
2254 VLANClientState
*vc
= NULL
;
2256 for (vlan
= first_vlan
; vlan
!= NULL
; vlan
= vlan
->next
)
2257 for (vc
= vlan
->first_client
; vc
!= NULL
; vc
= vc
->next
)
2258 if (strcmp(vc
->name
, name
) == 0)
2263 monitor_printf(mon
, "could not find network device '%s'", name
);
2267 if (strcmp(up_or_down
, "up") == 0)
2269 else if (strcmp(up_or_down
, "down") == 0)
2272 monitor_printf(mon
, "invalid link status '%s'; only 'up' or 'down' "
2273 "valid\n", up_or_down
);
2275 if (vc
->link_status_changed
)
2276 vc
->link_status_changed(vc
);
2281 void net_cleanup(void)
2285 /* close network clients */
2286 for(vlan
= first_vlan
; vlan
!= NULL
; vlan
= vlan
->next
) {
2287 VLANClientState
*vc
= vlan
->first_client
;
2290 VLANClientState
*next
= vc
->next
;
2292 qemu_del_vlan_client(vc
);
2299 void net_client_check(void)
2303 for(vlan
= first_vlan
; vlan
!= NULL
; vlan
= vlan
->next
) {
2304 if (vlan
->nb_guest_devs
== 0 && vlan
->nb_host_devs
== 0)
2306 if (vlan
->nb_guest_devs
== 0)
2307 fprintf(stderr
, "Warning: vlan %d with no nics\n", vlan
->id
);
2308 if (vlan
->nb_host_devs
== 0)
2310 "Warning: vlan %d is not connected to host network\n",